Home / 919,853,975.36-1,269,392,028.42-502,166,260.64

Finding the Fourth Proportional to 919,853,975.36, 1,269,392,028.42 and 502,166,260.64

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Solution

The fourth proportional to 919,853,975.36, 1,269,392,028.42 and 502,166,260.64 is: 692,985,914.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,853,975.36 : 1,269,392,028.42 = 502,166,260.64 : x
  2. Step 2: Convert to fraction form
    919,853,975.36/1,269,392,028.42 = 502,166,260.64/x
  3. Step 3: Cross multiply
    919,853,975.36x = 1,269,392,028.42 × 502,166,260.64
  4. Step 4: Simplify right side
    919,853,975.36x = 637,445,848,197,896,064
  5. Step 5: Solve for x
    x = 637,445,848,197,896,064/919,853,975.36
  6. Step 6: Final answer
    x = 692,985,914.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.